Pressure-regulator for pneumatic tires.



w. IVLMYERS. PRESSURE R'EGULATOR FOR PNEUMATIC TIRES.

APPLICATIOW FILED MAY I5. 1916 1 ,2173,9U5 Patented July 30, 1918.

ffi' ATTORNEY iavaeoa carton:

WILLIAM MJMYERS, 01! ST. JOSEPH, MISSOURI.

PRESSURE-REGULATOR, FOR PNEUMATIC TIRES.

Specification of Letters Yatent.

Patented Jul so, 1918.

Application filed May 15, 1916. Serie1No.9'7,572.

new and useful Improvement in Pressure- Regulators for Pneumatic Tires, of which the following is a specification.

My invention relates to improvements in pressure regulators for pneumatic tires.

One of the objects of my invention is to provide novel means for attaching the pressure regulator to the filling tube of a pneumatic tire so as to securely retain it so attached and to render its unauthorized re moval from the filling tube difficult.

A further object of my invention is to provide novel means for holding the casing from turning on the filling tube. I

Still another object of my invention is to provide novel means for sealing and retaining closed the joint between the casing and filling tube.

Another object of my invention is to provide locking means for securing the casing to the'filling tube which permits an authorized person provided with a proper implement to readily remove the casing from the'" filling. tube when occasion requires.

Other novel features of my invention are hereinafter fully described and claimed.

In the accompanying drawings which illustrate the preferred embodiment of my invention, f

Figure 1 is a side elevation of my 'improved pressure regulator.

Fig. 2 is an enlarged view showing my improved regnlator attached to a portion of a vehicle wheel, a portion of the device being shown in vertical section and a portion in side elevation.

Fig. 3 is a cross section on the line 3-3 of Fig. 2.

Fig. 4 is a cross section on the line 4-4 of Fig. 2.

Fig. 5 is a cross section on the line 5--5 of Fig. 2.

Fig. 6 is a crosssection on theline 6-6 of Fig. 2.

2, which with the base 1 forms a chamber adapted to hold fluid, such as air, under pressure.

For sealing the joint between the base 1 and the cap 2, there is provided upon the upper end of the base 1 a packing ring 3, against which the cap 2 has a bearing, Fig. 2. The base 1 is adapted to receive therein at its lower end the usual nut 4 which is commonly mounted upon the ordinary externally threaded filling tube 5, which extends through the usual rim 6 upon the outer side of which is mounted the usual pneumatic tire 7, to which is attached in the usual manner the filling tube 5. The nut 4, as is the common practice, bears against the inner side of the rim 6, which is the upper side, as viewed in Fig. 2.

I provide suitable means for hol n the base 1 from turning on the filling tu e5, said means comprising, preferably, a Washer 8, Fig. 6, which is adapted to be mounted on the nut 4 and which has a non-circular hole Q a'dapted to receive therethrough the filling tube 5, opposite sides of which, as shown in Fig. 6, are flattened. The washer 8 is thus held from rotating on the tube To hold the base 1 from rotating, it is provided internally with a longitudinal groove 10, Fig. 2, in which is fitted a peripheral. projection 11, Fig. 6, on thewasher 8.

The upper side of the Washer 8 has a bearing against the under side of an internal annular flange 12 with which the base 1 adjacent to its lower end is provided. .The filling tube 5 extends upwardly into the base 1 and cap 2 and is encircled by the annular flange 12.

For holding the base 1. from upward movement on the tube 5, and for sealing the joint between said tube and the base 1, to prevent escape of the compressed air held in the easing chamber, the following described means may be employed.

Mounted on the upper side of the annular fiange 1.2, is a packing ring 13, Fig. 2, which tightly embraces the tube 5.

collar 14. Fig. 4, preferably provided with a non-circular hole 15, through which the tube 5 extends, the size andshape ofthe hole 15, being such as to prevent rotation of the washer on the tube. I

Mounted on the washer 14 is a nut 16 which is fitted. upon the threaded tube 5,

a d wh ch, thro g he ici emed aqy of the -tion such that it will hold the valve 19 open,

asshown in Fig. 2. The cap 2 is then movement on the tube 5.

washerll holds the packing ring 13 tightl? the device, the cap 2 must be first reiiioved,

a so, holds the casing from any upward 'In order that the nut 16 may not be readily turned, upon the removal of the cap 2, by an unauthorized person not provided [with a proper'implement, the nut has a diameter. only slightly less. than the interior diameter of that portion of the'base l in which the nut is located.

j The upper side of the nut 16 may be provided with two diametrically opposite radial slots 17 which are adapted to. receive a suitab'lekey, not shown. Upon removing the cap2 and employing a key or other imple i ..;ment of a propershape, the nut 16 may be .aremovedfrom the filling tube 5, after which 1 the base 1,'-washer' 14 andpacking ring 13 1 20,

. My. improved regulator. is adapted to be may be. vertically slipped off, from the tube 5.

I applied. to the conventionaltype of filling: ;tube '5,*such as is shown in Fig 2, and which I, isprovided with the usual annular valve seat, 18,,against the underside of which is adapted to bear a valve 19, which, when used, is held'seated by a coil spring 20.-

The valve 19 is provided with the-usual .upwa'rdly extending stem 21, which extends through the valve seat 18, and which is nor- ,mau heIddepressed with the valve 19 in the open position by a member 22'having I arms 23 which engage the threaded periph- I ery of the upper portion of the tube .5. By means of this construction, a normally open air passage is provided between the tire .7

v l and the interior of the casing of my um i proved regulator.

vid ed with a filling tube of the kind illus- I 'trated, the washer 8 is slipped on the filling H tube 5 so as to rest against the nut 4c. The

base 1, with-the cap 2 removed, is then slipped over the filling tube to a position in which the washer 8 will bear against the under side of the flange 12, and the projection 11.will be in the groove 10..

The'packing ring 13 and the Washer 14: are then slipped,.in the order named, upon the tube 5, following which the nut 16 I "screwed'onto the tube 5 and to a position in which the packing ring 13 will bear tightly against'lthe flange 12. The. member 22 is then: applied to the filling tube 5 in a posi- 1 screwed into the base l'tightly against the lflpacki'n ring 3. 1

. As t us assembled, the base 1 cannot be,

intentionally or accidentally turned on' the "tube 5, and the unauthorized removal of the olimpressed against thefiange 12, and which To apply my improvedregulator to a ve- ,hi'cle wheel, having a pneumatic tire proand the nut 16 unscrewed witha suitable im:

plement designed for the purpose." L

The locking means serves not only to lock the. casing to the filling, tube, but it also serves to tightly "sealthe joint between the filling-tube and the casing.

I do not. limit my invention .to the structure shown andv describedpas modifications, within the scope of the appended claims, may be made without. departing from the spirit of'my invention; I d

What I claim i's:. I

tires, a casing adapted to he slipped over the filling'tube of a tire, and means engag} ing the casinga'nd adapted tointerlook with and non-rotatably engage: said fi11in tube for locking the casing to the: tube and for holding it from-rotation thereupon;

2. In a pressure regulator? forlpneumatic (tires, a casing adaptedto e 'elipped 'over ing non-circular in cross section,,-,a'nd means. ncluding'a washer for engag ngrthe caslng and-adapted to engage'lth'e filling tube, to prevent rotation of thec'asing on, the filling 1. In'apressure regulator for pneumatic tube, the washer having means engaging the casing and filling tube ma as-nee such that the washer will be held fro inf i'otation relative to the casing and manning tube.

4. Ina pressure regulator for pneumatic tires, a casing adapted to=bejslipped over thefilling tube of a tire,.tthe fillingtube be- Y ing non-circular in cross..section,'means for holding the casing frornlongitudinal move ment on the filling tubejand ajwasher having an opening adapted to receive the filling tube, said openingbeing'of a size and shape such that the washer is held from rotation on the filling tube, the washer havingmeans tor interlocking with the casing for holding the latter against rotationlrelative tothe.

washer.

5. In a pressure'regulator pneumatic tires, a casing adapted to be slipp'ed over the fillinglt'ube of a tire,,means,located within the casing and adapted td engage said filling tube for holding thecasing from longitudinal movement onthe filling tube, and. means within the casing-anglengaging the same and adapted to engagesaid filling tube non-rotatably for holding th, e' ,casing against .5 6'. In a pressure'regulator for pneumatic tires, a casing adapted to, he slipped over the filling tube of a tire .-a,we er adapted to slip over, said filling tube and having means for having non-rotatable engagement I with the filling tube and with the casing, a

and the second'washer for holding the latter from longitudinal movement on the filling'tube.v

7. In a pressure regulator for pneumatic tires, a casing comprising a base-adapted to be slipped over a filling tube of a tire and a cap removably engaging said base, the base means for non-rotatably engaging said tube having an internal annular flange adapted to encircle the filling tube, the base having also a longitudinal groove, awasher adapted to slip over said filling tube and having and provided with a projection adapted to fit in said" groove, the washer having a' hearing against the under side of said flange, and means adapted to slip over said tube and to have engagement therewith and adapted to engage the upper side of said flange for holding the base from upward movement on said tube. 8. In a pressure regulator for pneumatic tires, a casing comprising a base having an internal annular flange adapted toslip over the filling tube of a tire and a can removblyfitted to the base, a washer having a bearing against the under side of said flange and having means for non-rotatably engaging the filling tube and base, a packing ring adapted to encircle the filling tube and having a bearing against the upper side of said flange, a second washer adapted to encircle the filling tube and having a bearing against the upper side of said packing ring, and a nut adapted to have threaded connection with the filling tube and having a bearing against the second Washer.

9. In a pressure regulator for pneumatic tires, a casing having a base provided with an annular internal flange adapted to slip over the filling tube of a tire and having below'the flange a longitudinal groove, a

washer having means for non-rotatably engaging the filling tube and having a projection fitted in said groove and adapted to bear againstthe under side of said flange, packing means encircling the filling tube and bearing againstthe upper side of said washer, and releasable means for holding the packing means against said flange and having means adapted to engage the filling,

tube. c

v 10. In a pressure regulator for pneumatic tiresya casing having a base provided with an annular. flange ada ed to slip over the filling tube of a tire, a locking member having means adapted to non-rotatably engage the filling tube and the base for holding the latter from rotation on the tube, packing. means adapted to encircle the filling tube and havinga bearing against the upper side of the flange, and releasable means adapted to engage the filling tube for holding the packing means against the flange.

11. In a pressure" regulator for pneumatic tires, a casing having a base provided with an internal annular flange adapted to slip over an externally threaded filling tube of a tire, locking means adapted to non-rotatably engage the tube and base, packing means adapted to encircle the tube and having a bearing against the upper side of'said flange, and a nut adapted to be fitted on said tube and bearing against the packing means.

12. In a pressure regulator for pneumatic tires, a casing having a base provided with an internal annular flange adapted to slip over an externally threaded filling tube of a tire, the base having below the flange a longitudinal groove, a washer adapted to tires, a casing having means for holding fluid under pressure and adapted to be slipped over the filling tube of a tire, means adapted to non-rotatably engage the filling tube and the casing for holding the latter from turning on the filling tube, andmea-ns within the casing for engaging the casing and adapted to engage theltube forholding the casing from longitudinal movement on the tube.

14. In a pressure regulator for pneumatictires, a casing having means for holding fluid under pressure and adapted to be slipped over the filling tube of a tire, means adapted to non-rotatably engage the filling tube and the. casing for holding the latter from turning "on the tube, packing means adapted to close the joint between the tube and casing, and means adapted to engage the filling tube and the packing means for holding the casing from longitudinal movement on the tube and for retaining the packing means in operative position.

In testimony whereof I have signed my name to this specification.

wntnmivr M. MYERS. 

